Childhood in New York; high school experience at Horace Mann; Harvard undergraduate at the age of 15. Impressions of ordeal with Harlow Shapley. Depression years in the family business, return to a very changed Harvard in 1934. Thesis work on Interstellar Absorption (Bart Bok), Ph.D. 1937. Postdoc at Yerkes Observatory (Otto Struve) working on Upsilon Sagittarius. Develops the 140-degree camera (the Greenstein-Louis G.

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